Mercurial > hg > blitz_stable
comparison src/com/go/trove/net/LazySocketFactory.java @ 0:3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 21 Mar 2009 11:00:06 +0000 |
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-1:000000000000 | 0:3dc0c5604566 |
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1 /* ==================================================================== | |
2 * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group | |
3 * ==================================================================== | |
4 * The Tea Software License, Version 1.1 | |
5 * | |
6 * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved. | |
7 * | |
8 * Redistribution and use in source and binary forms, with or without | |
9 * modification, are permitted provided that the following conditions | |
10 * are met: | |
11 * | |
12 * 1. Redistributions of source code must retain the above copyright | |
13 * notice, this list of conditions and the following disclaimer. | |
14 * | |
15 * 2. Redistributions in binary form must reproduce the above copyright | |
16 * notice, this list of conditions and the following disclaimer in | |
17 * the documentation and/or other materials provided with the | |
18 * distribution. | |
19 * | |
20 * 3. The end-user documentation included with the redistribution, | |
21 * if any, must include the following acknowledgment: | |
22 * "This product includes software developed by the | |
23 * Walt Disney Internet Group (http://opensource.go.com/)." | |
24 * Alternately, this acknowledgment may appear in the software itself, | |
25 * if and wherever such third-party acknowledgments normally appear. | |
26 * | |
27 * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must | |
28 * not be used to endorse or promote products derived from this | |
29 * software without prior written permission. For written | |
30 * permission, please contact opensource@dig.com. | |
31 * | |
32 * 5. Products derived from this software may not be called "Tea", | |
33 * "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet", | |
34 * "Kettle", "Trove" or "BeanDoc" appear in their name, without prior | |
35 * written permission of the Walt Disney Internet Group. | |
36 * | |
37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED | |
38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
40 * DISCLAIMED. IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS | |
41 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
42 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
43 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
44 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
45 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
48 * ==================================================================== | |
49 * | |
50 * For more information about Tea, please see http://opensource.go.com/. | |
51 */ | |
52 | |
53 package com.go.trove.net; | |
54 | |
55 import java.net.*; | |
56 | |
57 /****************************************************************************** | |
58 * A socket implementation that lazily establishs a connection. It only | |
59 * connects when actually needed. Setting options and getting I/O streams will | |
60 * not force a connection to be established. As soon as a read or write | |
61 * operation is performed, a connection is established. | |
62 * <p> | |
63 * If the first write operation requires a connection to be established, then a | |
64 * recycled connection is requested. The connection is tested by writing the | |
65 * data to it. If this fails, a new connection is requested and the operation | |
66 * is tried again. | |
67 * | |
68 * @author Brian S O'Neill | |
69 * @version | |
70 * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 00/12/05 <!-- $--> | |
71 */ | |
72 public class LazySocketFactory implements SocketFactory { | |
73 private final SocketFactory mFactory; | |
74 | |
75 public LazySocketFactory(SocketFactory factory) { | |
76 mFactory = factory; | |
77 } | |
78 | |
79 public InetAddressAndPort getInetAddressAndPort() { | |
80 return mFactory.getInetAddressAndPort(); | |
81 } | |
82 | |
83 public InetAddressAndPort getInetAddressAndPort(Object session) { | |
84 return mFactory.getInetAddressAndPort(session); | |
85 } | |
86 | |
87 public long getDefaultTimeout() { | |
88 return mFactory.getDefaultTimeout(); | |
89 } | |
90 | |
91 public CheckedSocket createSocket() | |
92 throws ConnectException, SocketException | |
93 { | |
94 return mFactory.createSocket(); | |
95 } | |
96 | |
97 public CheckedSocket createSocket(Object session) | |
98 throws ConnectException, SocketException | |
99 { | |
100 return mFactory.createSocket(session); | |
101 } | |
102 | |
103 public CheckedSocket createSocket(long timeout) | |
104 throws ConnectException, SocketException | |
105 { | |
106 return mFactory.createSocket(timeout); | |
107 } | |
108 | |
109 public CheckedSocket createSocket(Object session, long timeout) | |
110 throws ConnectException, SocketException | |
111 { | |
112 return mFactory.createSocket(session, timeout); | |
113 } | |
114 | |
115 /** | |
116 * Returns a socket that will lazily connect. | |
117 */ | |
118 public CheckedSocket getSocket() throws ConnectException, SocketException { | |
119 return CheckedSocket.check(new LazySocket(mFactory)); | |
120 } | |
121 | |
122 /** | |
123 * Returns a socket that will lazily connect. | |
124 */ | |
125 public CheckedSocket getSocket(Object session) | |
126 throws ConnectException, SocketException | |
127 { | |
128 return CheckedSocket.check(new LazySocket(mFactory, session)); | |
129 } | |
130 | |
131 /** | |
132 * Returns a socket that will lazily connect. | |
133 */ | |
134 public CheckedSocket getSocket(long timeout) | |
135 throws ConnectException, SocketException | |
136 { | |
137 return CheckedSocket.check(new LazySocket(mFactory, timeout)); | |
138 } | |
139 | |
140 /** | |
141 * Returns a socket that will lazily connect. | |
142 */ | |
143 public CheckedSocket getSocket(Object session, long timeout) | |
144 throws ConnectException, SocketException | |
145 { | |
146 return CheckedSocket.check(new LazySocket(mFactory, session, timeout)); | |
147 } | |
148 | |
149 public void recycleSocket(CheckedSocket cs) | |
150 throws SocketException, IllegalArgumentException | |
151 { | |
152 if (cs == null) { | |
153 return; | |
154 } | |
155 | |
156 // Bust through two layers of wrapping to get at actual socket. | |
157 | |
158 Socket s = cs.mSocket; | |
159 if (s instanceof LazySocket) { | |
160 cs = ((LazySocket)s).recycle(); | |
161 if (cs == null) { | |
162 return; | |
163 } | |
164 } | |
165 | |
166 mFactory.recycleSocket(cs); | |
167 } | |
168 | |
169 public void clear() { | |
170 mFactory.clear(); | |
171 } | |
172 | |
173 public int getAvailableCount(){ | |
174 return mFactory.getAvailableCount(); | |
175 } | |
176 } |